diff options
| author | Mateusz Guzik <mjguzik@gmail.com> | 2025-11-05 16:36:22 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-11-12 12:19:09 +0100 |
| commit | 21b561dab1406e63740ebe240c7b69f19e1bcf58 (patch) | |
| tree | c1db81a019173b675e3447edf28f37b23ce0532c | |
| parent | e41c1f42919b01649ddea25b95eaa72dce2d591a (diff) | |
fs: hide dentry_cache behind runtime const machinery
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20251105153622.758836-1-mjguzik@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | fs/dcache.c | 6 | ||||
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 3 |
2 files changed, 6 insertions, 3 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 035cccbc9276..5c6282b03ba2 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -86,7 +86,8 @@ __cacheline_aligned_in_smp DEFINE_SEQLOCK(rename_lock); EXPORT_SYMBOL(rename_lock); -static struct kmem_cache *dentry_cache __ro_after_init; +static struct kmem_cache *__dentry_cache __ro_after_init; +#define dentry_cache runtime_const_ptr(__dentry_cache) const struct qstr empty_name = QSTR_INIT("", 0); EXPORT_SYMBOL(empty_name); @@ -3222,9 +3223,10 @@ static void __init dcache_init(void) * but it is probably not worth it because of the cache nature * of the dcache. */ - dentry_cache = KMEM_CACHE_USERCOPY(dentry, + __dentry_cache = KMEM_CACHE_USERCOPY(dentry, SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|SLAB_ACCOUNT, d_shortname.string); + runtime_const_init(ptr, __dentry_cache); /* Hash may have been set up in dcache_init_early */ if (!hashdist) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 8a9a2e732a65..20939d2445e7 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -955,7 +955,8 @@ defined(CONFIG_AUTOFDO_CLANG) || defined(CONFIG_PROPELLER_CLANG) #define RUNTIME_CONST_VARIABLES \ RUNTIME_CONST(shift, d_hash_shift) \ - RUNTIME_CONST(ptr, dentry_hashtable) + RUNTIME_CONST(ptr, dentry_hashtable) \ + RUNTIME_CONST(ptr, __dentry_cache) /* Alignment must be consistent with (kunit_suite *) in include/kunit/test.h */ #define KUNIT_TABLE() \ |